Apparatus for wiping a moving strip



Oct. 3, 1961 R. J. GAWNE APPARATUS FOR WIRING A MOVING STRIP 2 Sheets-Sheet :L

Filed Dec. l0, 1959 20 FETE INI/ENTOR ROBERT J. GA W/V A Homey MWI/111A@ This invention relates to apparatus for wiping and tensioning a moving strip and more particularly to such apparatus `for use with steel strip passing to or from rolls. Such apparatus is generally old but those of which I have knowledge have various disadvantages. In most instances it is necessary to release the Wipes when a new coil of strip is being threaded through the rolls or machine. With prior apparatus this was a diicult and slow operation so that the equipment was down an undue length of time. When used in conjunction with a take-up reel, the pressure of the wipe on the strip must be synchronized with the pull of the take-up reel to prevent winding the coil too tightly or too loosely. If wound too tightly and the coil is subsequently annealed, the strip will not be able to expand properly so that the convolutions of the strip will stick together. If wound too loosely, the surface of the strip becomes scratched because of excessive movement between the individual convolutions. It is therefore an object of my invention to provide 'a wipe which can be' easily and rapidly moved between operative and non-operative positions. A j j vAnother' object is -to provide such a wipe in which the pressure exerted by the wipe can be readily controlled.

These and other objects will befmore apparent after referring to the following specification and attached drawings in which:

FIGURE 1 is a schematic perspective view showing my invention in conjunction with a rolling mill;

lFIGURE 2 is an elevation showing the wipe of my invention in inoperative posi-tion;

FIGURE 3 is a view, simil-ar to FIGURE Q., showing ,the wipe in operative position;

FIGURE 4 is an enlarged View taken on a line IV-IV -of FIGURE 3;

v-system of the wipe.

Referring more particularly to the drawings reference numeral 2 indicates means for supporting a coil of strip S. Located some distance from the coil supporting means Iis a pair of rolls 4. Wipe 6 of my invention is located between the coil 2 and the rolls 4. The strip S passes Yfrom the coil support 2 through the wipe 6 to the rolls 4. It will be understood that the coil sup- 'port 2 may be a coiler rather than van uncoiler and that other processing equipment, such as a slitter, may be substituted for the rolls 4. The wipe 6 is mounted on a frame 8 and includes a fixed frame assembly 10 having a hinge bracket 12 at one end on which is supported an upper frame assembly 14 by means of a pin 16. A latch bar 18 extends between and is welded to a pair of vertical plates 20 which are welded to the top of lower frame 10, A vertical lock plate 22 is welded to the top of frame adjacent the latch bar 18 and has a slot 24 in its upper surface. A valve actuator 26 is attached to the frame assembly 10 ladjacent the lock l plate 22 and includes a bolt 28 which provides for ver- Ecc end so that an opening 44 is provided at each end there- Y of. Vertical slots 46 are provided in the side of the platen 36 adjacent each end thereof. A wipe plate 48 with suitable wipe fabric 50 Wrapped therearound is supported from the platen 36. For this purpose it is provided with upwardly extending plates 52 which are spaced apart the same distance as slots 46. A hole 54 is provided in each plate 52. The plates 52 of the wipe plate 48 are passed through the openings 44 and pins 56 are passed through the slots 46 and holes 54. Vertical slots 58 are provided in the .upper frame 34 at the same spacing as slots 46 so as to permit the wipe plate 48 to move vertically with respect to the platen 36. Vertical holes 60 are provided through the top of upper frame 34 at the same spacing as holes 40. A threaded rod 62 passes through aligned holes 40 and 60 with a nut 64 being threaded to the bottom thereof below plate 38 and a nut 66 being threaded to the top thereof. A compression-spring 68 surrounds the threaded rod 62 between the top of frame 34 and the bottom of nut 66. The upward force exerted by springs 68 can be adjusted by nuts 66. A bracket 70 is welded to the top of box member 34 and supports a cylinder '72 having a vertical piston rod 74 extending downwardly therefrom through a hole 7S in the top of box member 34. The piston rod 74 is connected to the platen 36 by means of a' clevis 76 and a pin 78 passing through aligned holes .in the sides of platen 36. A latch arm 82 is pivoted intermediate its ends to upper frame 14 by means of a pin 84 extending between the side walls of box member 34. The latch arm 82 extends upwardly through au opening 86 in the top of box member 34. The upper part of arm 82 is connected by means of a clevis 88 to piston rod 90 of a cylinder 92. The cylinder 92 is pivotally mounted on bracket 94 which is welded to the top of box member 34. A spring 96 is located in the opening l86 with one end being seated in the wall of opening 86 and the other end being seated in the arm 82 so'as to bias the arm in a clockwise direction as shown in FIGURE 7 when pressure is removed from cylinder 92. An upper lock plate 98 is attached to box member 34 and has a tongue 99 which is shaped to be received in slot 24 of lower lock plate 22.

A sequence valve 100 is 4attached to the side portion of frame 14 in alignment with the bolt 28. A sequence valve 102 is attached to the top of frame 14 and is adapted to be actuated by an L shaped lever 104 pivotally mounted on top of box member 34 by means of a pin 106. An arm '108 is welded to the top of box member 34 above the bracket 12. The free end of the arm 108 is connected by means of a clevis 110 to a piston rod 112 of cylinder 114 which is pivotally mounted at its lower end by means of pin 116 to the support 8. A valve 118 is mounted on the top of box member 34 with its actuating bar extending downwardly so as to be operable by the platen 36. In 4the pneumatic system shown in FIGURE 8 air from air source 120 is delivered to a four-way two position valve 122. A conduit 124 leads from the valve 122 to the lower end of cylinder 114 and to valves 100 and 102. A conduit 126 leads from valve 100 to the blind end of cylinder 92. A conduit 128 leads from valve 1102 through presa fluid cylinder mounted on said box-shaped member, a connection between said fluid cylinder and said platen to move it downwardly against said biasing means, a wipe plate supported by said platen, a wipe material supported by said wipe plate, a latch bar mounted on said xed frame assembly on the side opposite said pivot, a latch arm pivotally mounted on said box-shaped member below the top thereof, said box-shaped member having an opening in the top thereof through which the latch arm passes, means biasing said latch arm lto unlocked position, means for moving said upper frame assembly about its pivot, means operable by movement of said upper frame assembly to closed position to move said latch arm to locked position and to move said platen downwardly, and means for releasing said latch larm and raising said upper frame assembly to inoperative position.

5. Apparatus for wiping a moving strip comprising a ixed frame assembly including a wipe material over which the strip passes, an upper frame assembly mounted on said ixed frame assembly for pivotal movement about an axis generally parallel to and at one side of the path of movement of said strip, said upper frame assembly including a box-shaped member open at its lower end, a platen Within said box-shaped member, means biasing said platen upwardly within said box-shaped member, a iiuid cylinder mounted on said box-shaped member, a connection between said fluid cylinder and said platen to move it downwardly against said biasing means, a wipe material supported by said platen, a latch bar mounted on said Xed frame assembly on the side remote from said pivot, a latch arm pivotally mounted on said box-shaped member below the top thereof, said box-shaped member having an opening in the top thereof through which the latch arm passes, means biasing said latch arm to unlocked position, a second lluid cylinder mounted on said box-shaped member, a connection between said second lluid cylinder and said latch arm to move it to latched position against said last named biasing means, a third iluid cylinder, a connection between said third uid cylinder and said box-shaped member to move said upper frame assembly about its pivot, a manually operable valve to direct uid into opposite ends of said third Huid cylinder to move said upper frame assembly between non-operative and operative positions, a second valve mounted on one of said frame assemblies, means for operating said second valve mounted on the other ofsaid frame assemblies, a third valve, means actuated by said latch arm for operating said third valve, a fourth valve mounted on said box-shaped member and operable by said platen, movement of the upper frame assembly to operative position actuating said second' valve to operate said second cylinder to move said latch arm to latched position, movement of said latch arm to latched position actuating said third valve to operate said rst cylinder to move said platen and upper wipe plate downwardly, said first valve being movable to direct uid into the opposite end of said first cylinder and release uid in said second cylinder to unlatch the frame assemblies and move the platen upwardly, upward movement of said platen actuating said fourth valve to cause said third cylinder to move said upper frame assembly to open positiou.

6. Apparatus for wiping a moving strip comprising a xed frame assembly including a wipe material over which the strip passes, an upper frame assembly mounted on said xed frame assembly for pivotal movement about an axis generally parallel to and at one side of the path of movement of said strip, said upper frame assembly including a box-shaped member open at its lower end, a platen within said box-shaped member, means biasing said platen upwardly within said box-shaped member, a fluid cylinder mounted on said box-shaped member, a connection between said fluid cylinder and said platen to move it downwardly against said biasing means, a wipe plate supported by said platen, a wipe material supported by said wipe plate, a latch bar mounted on said fixed frame assembly on the side remote from said pivot, a latch arm pivotally mounted on said box-shaped member below the top thereof, said box-shaped member having an opening in the top thereof through which the latch arm passes, means biasing `said latch arm to unlocked position, a second fluid cylinder mounted on said box-shaped member, a connection between said second fluid cylinder and said latch arm to move it to latched position against said last named biasing means, a third iluid cylinder, a connection between said third uid cylinder and said box-shaped member to move said upper frame assembly about its pivot, a manually operable Valve to direct uid into opposite ends of said third iluid cylinder to move said upper frame assembly between non-operative and operative positions, a second valve mounted on one of said frame assemblies, means for operating said second valve mounted on the other of said frame assemblies, a third valve, means actuated by said latch arm for operating said third valve, a fourth valve mounted on said box-shaped member and operable by said platen, and interlocking lock plates mounted on said frame assemblies -to positively lock them from movement in the direction of strip travel, movement of the upper frame assembly to operative position actuating said second valve to operate said second cylinder to move said latch arm to latched position, movement of said latch arm to latched position actuating said third valve to operate said rst cylinder to move said platen and upper wipe plate downwardly, said rst valve being movable to direct iluid into the opposite end of said rst cylinder and release fluid in said second cylinder to unlatch the frame assemblies and move the platen upwardly, upward movement of said platen actuating said fourth valve to cause said third cylinder to move said upper frame assembly to open position.

References Cited in the file of this patent UNITED STATES PATENTS 2,236,460 Thomas Mar. 25, 1941 2,453,339 Peterson Nov. 9, 1948 2,759,301 Valette et al. Aug. 21, 1956 UNITED STATES PATENT 0EE1CE `v 1 CERTIFICATE OF CORRECTION Patent Nm 3,002,210 october svv 1961 Robert J, Gawne It is hereby certified that error appears in the above numbered patent requiring correction and that the said Letters Patent should read as I corrected below.

In the grantv lines l to 3 for ""Robert J. Gawney of Cuyahoga Heights Village, OhioY assignor to United States Steel Corporation. a corporation of New Jerseyvmf' read Robert I. Gawneq of Cuyahoga Heights Village Ohio, --3 line 12I for "UnitedStates Steel CorporatiomI its successors"' read Robert J. GawneY his heirs in the heading to the printed sloecifitationI lines 3 to EY for Robert J, Gawne Cuyahoga Heights Village, Ohi 0 assignor to United States Steel Corporationu a corporation of New Jersey" read RohertJ., Gawne,7 l Cuyahoga Heights VillageY Ohio (4749 East 71st St.,Y Cleveland Sq l Signed and sealed this 3rd day of April 196:2l

(SEAL) Attest:

ERNEST W1, SWIDER DAVID L., LADD l Attesting Officer Commissioner!b of Patents 

